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Boyle’s law states that pressure multiplied by volume is a constant value. Hence which of the following statements is correct?

waelhammad
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2022-10-19
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Boyle’s law states that pressure multiplied by volume is a constant value. Hence which of the following statements is correct?

  1. The amount of air in the lungs will increase when the pressure inside them increases.
  2. A positive pressure is produced in the lungs when the chest expands
  3. A negative pressure is produced in the lungs when the chest expands.
  4. The amount of air in the lungs will decrease when the pressure in them decreases.
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waelhammad
2022-10-19
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C: Boyle’s states: P × V = constant. This means that as one of P or V increases, the other decreases enough for their product to be unchanged. Hence as V increases with chest expansion, P decreases to below atmospheric pressure (a negative pressure). 

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